// Created on: 1994-01-10 // Created by: Yves FRICAUD // Copyright (c) 1994-1999 Matra Datavision // Copyright (c) 1999-2014 OPEN CASCADE SAS // // This file is part of Open CASCADE Technology software library. // // This library is free software; you can redistribute it and/or modify it under // the terms of the GNU Lesser General Public License version 2.1 as published // by the Free Software Foundation, with special exception defined in the file // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT // distribution for complete text of the license and disclaimer of any warranty. // // Alternatively, this file may be used under the terms of Open CASCADE // commercial license or contractual agreement. #ifndef _Bisector_BisecPC_HeaderFile #define _Bisector_BisecPC_HeaderFile #include #include #include #include #include #include #include #include #include class Geom2d_Curve; class Geom2d_Geometry; class gp_Trsf2d; class gp_Vec2d; class Bisector_BisecPC; DEFINE_STANDARD_HANDLE(Bisector_BisecPC, Bisector_Curve) //! Provides the bisector between a point and a curve. //! the curvature on the curve has to be monoton. //! the point can't be on the curve exept at the extremities. class Bisector_BisecPC : public Bisector_Curve { public: Standard_EXPORT Bisector_BisecPC(); //! Constructs the bisector between the point

and //! the curve . //! = 1. if the bisector curve is on the Left of //! else = -1. //! is used to trim the bisector.The distance //! between the points of the bisector and is smaller //! than . Standard_EXPORT Bisector_BisecPC(const Handle(Geom2d_Curve)& Cu, const gp_Pnt2d& P, const Standard_Real Side, const Standard_Real DistMax = 500); //! Constructs the bisector between the point

and //! the curve Trimmed by and //! = 1. if the bisector curve is on the Left of //! else = -1. //! Warning: the bisector is supposed all over defined between //! and . Standard_EXPORT Bisector_BisecPC(const Handle(Geom2d_Curve)& Cu, const gp_Pnt2d& P, const Standard_Real Side, const Standard_Real UMin, const Standard_Real UMax); //! Construct the bisector between the point

and //! the curve . //! = 1. if the bisector curve is on the Left of //! else = -1. //! is used to trim the bisector.The distance //! between the points of the bisector and is smaller //! than . Standard_EXPORT void Perform (const Handle(Geom2d_Curve)& Cu, const gp_Pnt2d& P, const Standard_Real Side, const Standard_Real DistMax = 500); //! Returns True if the bisector is extended at start. Standard_EXPORT Standard_Boolean IsExtendAtStart() const Standard_OVERRIDE; //! Returns True if the bisector is extended at end. Standard_EXPORT Standard_Boolean IsExtendAtEnd() const Standard_OVERRIDE; //! Changes the direction of parametrization of . //! The orientation of the curve is modified. If the curve //! is bounded the StartPoint of the initial curve becomes the //! EndPoint of the reversed curve and the EndPoint of the initial //! curve becomes the StartPoint of the reversed curve. Standard_EXPORT void Reverse() Standard_OVERRIDE; //! Returns the parameter on the reversed curve for //! the point of parameter U on . Standard_EXPORT Standard_Real ReversedParameter (const Standard_Real U) const Standard_OVERRIDE; Standard_EXPORT Handle(Geom2d_Geometry) Copy() const Standard_OVERRIDE; //! Transformation of a geometric object. This tansformation //! can be a translation, a rotation, a symmetry, a scaling //! or a complex transformation obtained by combination of //! the previous elementaries transformations. Standard_EXPORT void Transform (const gp_Trsf2d& T) Standard_OVERRIDE; //! Returns the order of continuity of the curve. //! Raised if N < 0. Standard_EXPORT Standard_Boolean IsCN (const Standard_Integer N) const Standard_OVERRIDE; //! Value of the first parameter. Standard_EXPORT Standard_Real FirstParameter() const Standard_OVERRIDE; //! Value of the last parameter. Standard_EXPORT Standard_Real LastParameter() const Standard_OVERRIDE; Standard_EXPORT GeomAbs_Shape Continuity() const Standard_OVERRIDE; //! If necessary, breaks the curve in intervals of //! continuity . And returns the number of //! intervals. Standard_EXPORT Standard_Integer NbIntervals() const Standard_OVERRIDE; //! Returns the first parameter of the current //! interval. Standard_EXPORT Standard_Real IntervalFirst (const Standard_Integer Index) const Standard_OVERRIDE; //! Returns the last parameter of the current //! interval. Standard_EXPORT Standard_Real IntervalLast (const Standard_Integer Index) const Standard_OVERRIDE; Standard_EXPORT GeomAbs_Shape IntervalContinuity() const; Standard_EXPORT Standard_Boolean IsClosed() const Standard_OVERRIDE; Standard_EXPORT Standard_Boolean IsPeriodic() const Standard_OVERRIDE; //! Returns the distance between the point of //! parameter U on and my point or my curve. Standard_EXPORT Standard_Real Distance (const Standard_Real U) const; Standard_EXPORT void D0 (const Standard_Real U, gp_Pnt2d& P) const Standard_OVERRIDE; Standard_EXPORT void D1 (const Standard_Real U, gp_Pnt2d& P, gp_Vec2d& V) const Standard_OVERRIDE; Standard_EXPORT void D2 (const Standard_Real U, gp_Pnt2d& P, gp_Vec2d& V1, gp_Vec2d& V2) const Standard_OVERRIDE; Standard_EXPORT void D3 (const Standard_Real U, gp_Pnt2d& P, gp_Vec2d& V1, gp_Vec2d& V2, gp_Vec2d& V3) const Standard_OVERRIDE; Standard_EXPORT gp_Vec2d DN (const Standard_Real U, const Standard_Integer N) const Standard_OVERRIDE; Standard_EXPORT void Dump (const Standard_Integer Deep = 0, const Standard_Integer Offset = 0) const; //! Returns the parameter on the curve1 of the projection //! of the point of parameter U on . Standard_EXPORT Standard_Real LinkBisCurve (const Standard_Real U) const; //! Returns the reciproque of LinkBisCurve. Standard_EXPORT Standard_Real LinkCurveBis (const Standard_Real U) const; //! Returns the parameter on corresponding to

. Standard_EXPORT Standard_Real Parameter (const gp_Pnt2d& P) const Standard_OVERRIDE; //! Returns if the bisector is empty. Standard_EXPORT Standard_Boolean IsEmpty() const; DEFINE_STANDARD_RTTIEXT(Bisector_BisecPC,Bisector_Curve) protected: private: Standard_EXPORT void Values (const Standard_Real U, const Standard_Integer N, gp_Pnt2d& P, gp_Vec2d& V1, gp_Vec2d& V2, gp_Vec2d& V3) const; Standard_EXPORT void Extension (const Standard_Real U, gp_Pnt2d& P, gp_Vec2d& V1, gp_Vec2d& V2, gp_Vec2d& V3) const; //! Computes the interval where the bisector is defined. Standard_EXPORT void ComputeIntervals(); Standard_EXPORT void CuspFilter(); Standard_EXPORT Standard_Real SearchBound (const Standard_Real U1, const Standard_Real U2) const; Standard_EXPORT void Init (const Handle(Geom2d_Curve)& Curve, const gp_Pnt2d& Point, const Standard_Real Sign, const TColStd_SequenceOfReal& StartIntervals, const TColStd_SequenceOfReal& EndIntervals, const Standard_Integer BisInterval, const Standard_Integer CurrentInterval, const Standard_Real ShiftParameter, const Standard_Real DistMax, const Standard_Boolean IsEmpty, const Standard_Boolean IsConvex, const Standard_Boolean ExtensionStart, const Standard_Boolean ExtensionEnd, const gp_Pnt2d& PointStartBis, const gp_Pnt2d& PointEndBis); Handle(Geom2d_Curve) curve; gp_Pnt2d point; Standard_Real sign; TColStd_SequenceOfReal startIntervals; TColStd_SequenceOfReal endIntervals; Standard_Integer bisInterval; Standard_Integer currentInterval; Standard_Real shiftParameter; Standard_Real distMax; Standard_Boolean isEmpty; Standard_Boolean isConvex; Standard_Boolean extensionStart; Standard_Boolean extensionEnd; gp_Pnt2d pointStartBis; gp_Pnt2d pointEndBis; }; #endif // _Bisector_BisecPC_HeaderFile